Abstract
Abstract The potato psyllid, Bactericera cockerelli (Sulc) (Hemiptera: Triozidae), is a serious pest of potatoes that can cause yield loss by direct feeding and by transmitting a bacterial pathogen, Candidatus Liberibacter psyllaurous (also known as Candidatus L. solanacearum), which is associated with zebra chip disease of this crop. Current pest management practices rely on the use of insecticides for control of potato psyllid to lower disease incidences and increase yields. Imidacloprid is typically applied at potato planting, and it remains unknown if imidacloprid has any effect on potato psyllid feeding behavior. Thus, our specific objectives of this study were to determine and characterize the effects of imidacloprid treatment (0.11 ml l −1 ) to potato plants on adult potato psyllid feeding behavior 1, 2, and 4 weeks post‐application. Electrical penetration graph (EPG) recordings of potato psyllid feeding revealed six EPG waveforms, which include non‐probing (NP), intercellular stylet penetration (C), initial contact with phloem tissue (D), salivation into phloem sieve elements (E1), phloem sap ingestion (E2), and ingestion of xylem sap (G). The number of NP events and the duration of individual NP events significantly increased on plants treated with imidacloprid compared with untreated controls. Potato psyllids exhibited significant decreases in the number of phloem salivation events on plants treated with imidacloprid. Waveform durations and waveform durations per event for E2 and G were significantly decreased for psyllids on plants treated with imidacloprid compared with untreated controls. These data suggest that the effective use of imidacloprid to reduce transmission of Ca. Liberibacter psyllaurous is related to the negative effects of imidacloprid on psyllid feeding.
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Claims 4
Claim · model-written summary
Imidacloprid on potato plants increased the number and duration of non-probing events of potato psyllid compared with untreated controls.
- Taxon
- potatoes
Solanum tuberosume5 - Treatment
- imidaclopride1
- Interactor
- potato psyllid
Bactericera cockerellie5pest - Outcome
- number of NP events and the duration of individual NP eventse1
- Direction
- increasede1
- Comparator
- untreated controlse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The number of NP events and the duration of individual NP events significantly increased on plants treated with imidacloprid compared with untreated controls”
e5“The potato psyllid, Bactericera cockerelli (Sulc) (Hemiptera: Triozidae), is a serious pest of potatoes”
Claim · model-written summary
Imidacloprid decreased the number of phloem salivation events of potato psyllid on treated potato plants.
- Taxon
- potatoesSolanum tuberosume5
- Treatment
- imidaclopride2
- Interactor
- potato psyllidBactericera cockerellie5pest
- Outcome
- number of phloem salivation eventse2
- Direction
- decreasese2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Potato psyllids exhibited significant decreases in the number of phloem salivation events on plants treated with imidacloprid”
e5“The potato psyllid, Bactericera cockerelli (Sulc) (Hemiptera: Triozidae), is a serious pest of potatoes”
Claim · model-written summary
Imidacloprid decreased the durations of E2 and G waveforms of potato psyllid compared with untreated controls.
- Taxon
- potatoesSolanum tuberosume5
- Treatment
- imidaclopride3
- Interactor
- potato psyllidBactericera cockerellie5pest
- Outcome
- Waveform durations and waveform durations per event for E2 and Ge3
- Direction
- decreasede3
- Comparator
- untreated controlse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Waveform durations and waveform durations per event for E2 and G were significantly decreased for psyllids on plants treated with imidacloprid compared with untreated controls”
e5“The potato psyllid, Bactericera cockerelli (Sulc) (Hemiptera: Triozidae), is a serious pest of potatoes”
Claim · model-written summary
The reduction of Ca. Liberibacter psyllaurous transmission by imidacloprid is suggested to be related to its negative effects on psyllid feeding.
- Taxon
- potatoesSolanum tuberosume5
- Treatment
- imidaclopride6
- Interactor
- Ca. Liberibacter psyllaurouse6pathogen
- Second interactor
- potato psyllidBactericera cockerellie5pest
- Outcome
- transmission of Ca. Liberibacter psyllaurouse6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“the effective use of imidacloprid to reduce transmission of Ca. Liberibacter psyllaurous is related to the negative effects of imidacloprid on psyllid feeding”
e5“The potato psyllid, Bactericera cockerelli (Sulc) (Hemiptera: Triozidae), is a serious pest of potatoes”
The same questions in other papers
imidacloprid · Bactericera cockerelli · Solanum tuberosum (potato)Results agree
2 papers in the same direction as this paper
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.